The Moon on this date
Moon on Thursday, January 31, 1991
Waning Gibbous
97.1% illuminated · waning
Shown at midday from Columbus, US.
Rise, set and path
Times for Columbus, US
- Moonrise
- E
- Highest
- 61°
- Moonset
- W
60°30°
Horizon
7:51 PM
8:21 AM
61°
Key figures
- Illuminated
- 97.1%
- Age
- 15.7 days
- Distance
- 370,500 km
- Apparent size
- 32.2′
- Constellation
- Leo
- Lunation number
- 842
Events on this date
No Moon or planet events on this date.
Exact values
For Jan 31, 12:00 PM, midday on this date.
| Elongation from the Sun | 199.43° |
|---|---|
| Phase angle | 19.58° |
| Illuminated fraction | 97.11% |
| Altitude / azimuth | -34.8° / 324.0° |
| Right ascension / declination | 10h 07m / 8.53° |
| Ecliptic longitude / latitude | 150.75° / -2.86° |
| Libration in longitude / latitude | 4.99° / 4.52° |
| Sub-solar longitude / latitude | -14.21° / 0.40° |
| Position angle of the axis | 19.2° |
| Position angle of the bright limb | 120.8° |
| Apparent magnitude | -12.3 |
Directions are good to about a hundredth of a degree and the distance to about 50 km; more digits would not mean anything.